Welcome to the source repo for the Arnold for Blender (BtoA) manual! If you're a contributor, here is some quick info to get you up and running.
The BtoA manual requires MkDocs, which can be installed via pip.
pip3 install mkdocs
When you're working on documentation, it's helpful to see the site running in a web browser. MkDocs provides a tool for us to do that. Simply run mkdocs serve in a terminal window, then visit http://127.0.0.1:8000 in your browser of choice to view the docs. MkDocs will automatically detect when you save a file and will automatically refresh the page for you.